Karin A. Pacheco, MD, MSPH

Karin A. Pacheco
Associate Professor
Department of Medicine
Division of Environmental & Occupational Health Sciences
Best Doctors in America® 2017-2018 — Best Doctors, Inc.
Karin A. Pacheco, MD, is an allergist at National Jewish Health. Dr. Pacheco is in the Division of Environmental and Occupational Health Sciences.

Specialties and ConditionsSpecialties & Conditions
Research AreasResearch Areas
  • Environmental and Occupational Diseases

Special Interests

Clinical Interests 

Occupational asthma and allergies. Challenge Chamber for diagnosis of Occupational Asthma.

Dr. Pacheco specializes in the diagnosis and treatment of occupational asthma and allergic disease. She performs specific occupational allergen challenges to help diagnose occupational asthma as well as specific skin and patch testing to occupational allergens.


Research Interests

Genetic and environmental risk factors for asthma and allergy to laboratory animals in exposed research scientists and technicians.


University of Colorado Denver School of Medicine, MSPH, Preventive Med & Biometrics, Honors Thesis
New York University School of Medicine, MD, with Honors
New York University, Premedical Studies
Bryn Mawr College (Bryn Mawr, PA), BA, Economics & French Literature
L'Académie (Paris), Junior Year Abroad
National Jewish Health / University of Colorado Denver School of Medicine, Residency, Occupational Medicine
University of Colorado Denver, Internship and Residency, Internal Medicine
National Jewish Health / University of Colorado Denver School of Medicine, Fellowship, Allergy and Immunology

Awards & Recognition

2014: Best Doctors in America, Best Doctors, Inc.
1991-1992: Della McShane Fellowship in Medicine (Allergy)
1990-1991: Liz Claiborne, Inc. Fellowship in Immunology NYU MD with honors in microbiology First Prize for Student Research Bertran Gesner Memorial Prize for excellence in research in immunology

Board Certification

Internal Medicine
American Board of Internal Medicine Allergy and Immunology
American Conjoint Board of Internal Medicine and Pediatrics Occupational Medicine
American Board of Preventive Medicine

Professional Memberships

Fellow, American Academy of Allergy, Asthma and Immunology, Environmental and Occupational Respiratory Disease Section
American Thoracic Society, Environmental/Occupational Health Section
American College of Occupational and Environmental Medicine


Pacheco K, Maier L, Silveira L, Goelz K, Noteware K, Luna B, and C Rose. Association of CD14 alleles with chest symptoms and lung function in laboratory animal researchers. (manuscript in preparation) Pacheco K, Maier L, Silveira L, Goelz K, Noteware K, Luna B, Murphy J, Dubois R, and C Rose. Association of TLR4 alleles with symptoms and sensitization to laboratory animals. (manuscript in revision)

Pacheco K, McCammon C, Liu AH, Thorne PS, O’Neill M, Martyny J, Newman L, and Rose CS. Characterization of endotoxin and mouse allergen exposures in mouse facilities and research laboratories. Ann Occup Hyg 2006; 50 (6): 563-572. epub April 2006.

Pacheco KA, McCammon C, Liu AH, Thorne PS, O’Neill ME, Martyny J, Newman LS, Hamman RF, and Rose CS. Airborne endotoxin predicts symptoms in nonsensitized technicians and research scientists exposed to laboratory mice. Am J Resp Crit Care Med 2003; 167: 983-990.

Pacheco K, Tarkowski M, Negri J, Sterritt C, Rosenwasser L, and Borish L. The influence of diesel exhaust particles on mononuclear phagocytic cell-derived cytokines: IL-10, TGF-b and IL-1b. Clin Exp Immunol. 2001 Dec; 126(3): 374-83.

Academic Affiliations

Assistant Professor, Preventive Medicine and Allergy/Immunology, University of Colorado Denver

Teaching & Professional Positions

“Bioaerosols in Occupational Medicine,” A Problem-Based Learning Course
“History of Occupational Medicine” in Introduction to Occupational and Environmental Health

Conflicts of Interest

National Jewish Health physicians and scientists may collaborate with pharmaceutical or other industries to develop medical and scientific breakthroughs or to provide education on trends in quality medical practice and outcomes to physicians and health professionals around the country. National Jewish Health maintains a strict conflict of interest policy to ensure that all potential conflicts are clearly visible and that management plans are put in place in order to further innovation and education while ensuring the protection of our patients and the integrity of our research. National Jewish Health publicly discloses any payment to our physicians or scientists. View this faculty member’s industry relationships and collaborations.

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Contact Information

  • Office: 877.225.5654
  • Fax: 303.398.1452



  • National Jewish Health Main Campus
    1400 Jackson St.
    Denver, CO 80206

Patient Ratings

The Patient Rating score is an average of all responses to care provider related questions on our independent rating system, the Press Ganey Patient Satisfaction Survey.

Responses are measured on a scale of 1 to 5, with 5 being the best score. Learn more about our patient satisfaction survey.

Confidence in your doctor

Amount of time spent with you

Spoke using clear language

Includes you in decisions

Shows concerns for your questions

Explanation of problem/condition

Recommended to others



Comments are collected in our Press Ganey Patient Satisfaction Surveys. Patients are de-identified to protect confidentiality and patient privacy. Learn more about our patient satisfaction survey.

National Jewish Health PatientDecember, 2017
Dr Pacheco made certain that the results from the [tests] reached my [provider] as soon as those results were known.

National Jewish Health PatientDecember, 2017
I was referred to Natl. Jewish by *Karin for [condition] testing before my [procedure].

National Jewish Health PatientNovember, 2017
My wife had seen *Dr. Pacheco so I requested her. I would recommend her to anyone.

National Jewish Health PatientNovember, 2017

National Jewish Health PatientOctober, 2017
*Dr. Pacheco is excellent.

National Jewish Health PatientSeptember, 2017
*Dr. Pacheco is an amazing woman, it was a privilege to meet her. And have her access my condition.

National Jewish Health PatientAugust, 2017
Overwhelmed with Dr. Pacheco's care and listening! If only all physicians were like she!

National Jewish Health PatientAugust, 2017
The most concerned and helpful Doctor I have ever encountered!

National Jewish Health PatientJuly, 2017
I enjoyed by Dr. Pacheco, I got the warm feeling of her caring for me

National Jewish Health PatientJune, 2017
wonderful experience

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